Effective removal of lead ions using graphene oxide-MgO nanohybrid from aqueous solution: Isotherm, kinetic and thermodynamic modeling of adsorption
作者： Sweta Mohan , Vijay Kumar , Devendra Kumar Singh , Syed Hadi Hasan , None
DOI: 10.1016/J.JECE.2017.03.031
关键词:
摘要: Abstract The graphene oxide (GO) and magnesium (MgO) nanohybrid (GOMO) was prepared by simple precipitation method has been successfully utilized for the removal of Pb(II) from water. synthesized GOMO characterized FTIR, XRD, SEM, EDX Raman, BET, XPS analysis which indicated that GO decorated MgO nanoparticles. results adsorption experiments showed an excellent adsorbent because its high uptake capacity (190 mg/g) at a low dose (0.4 g/L) within 30 min equilibrium time, 30 °C temperature, 6.5 pH. parameters affecting i.e. pH, initial concentration, dose, temperature were optimized to achieve maximum adsorption. process investigated different diffusion models Mass transfer, Webber-Morris, Boyd kinetic model revealed initially, lead governed external mass transfer followed intraparticle diffusion. experimental data fit well with Langmuir, D-R isotherm suggested monolayered way chemical nature respectively. evaluation thermodynamic (ΔG°, ΔH°, ΔS°) Van't Hoff equation spontaneous endothermic
sci-hub.se 参考文章(68)
Sweta Mohan, Yogendra Singh, Devendra Kumar Verma, Syed Hadi Hasan, None, Synthesis of CuO nanoparticles through green route using Citrus limon juice and its application as nanosorbent for Cr(VI) remediation: Process optimization with RSM and ANN-GA based model Process Safety and Environmental Protection. ,vol. 96, pp. 156- 166 ,(2015) , 10.1016/J.PSEP.2015.05.005
Wen Song, Baoyu Gao, Xing Xu, Fang Wang, Nan Xue, Shenglei Sun, Wuchang Song, Ruibao Jia, Adsorption of nitrate from aqueous solution by magnetic amine-crosslinked biopolymer based corn stalk and its chemical regeneration property. Journal of Hazardous Materials. ,vol. 304, pp. 280- 290 ,(2016) , 10.1016/J.JHAZMAT.2015.10.073
G RAO, C LU, F SU, Sorption of divalent metal ions from aqueous solution by carbon nanotubes: A review Separation and Purification Technology. ,vol. 58, pp. 224- 231 ,(2007) , 10.1016/J.SEPPUR.2006.12.006
Xin-Yao Yu, Tao Luo, Yong Jia, Yong-Xing Zhang, Jin-Huai Liu, Xing-Jiu Huang, None, Porous Hierarchically Micro-/Nanostructured MgO: Morphology Control and Their Excellent Performance in As(III) and As(V) Removal Journal of Physical Chemistry C. ,vol. 115, pp. 22242- 22250 ,(2011) , 10.1021/JP207572Y
D. Ranjan, M. Talat, S.H. Hasan, Biosorption of arsenic from aqueous solution using agricultural residue 'rice polish' Journal of Hazardous Materials. ,vol. 166, pp. 1050- 1059 ,(2009) , 10.1016/J.JHAZMAT.2008.12.013
Guodong Sheng, Suowei Wang, Jun Hu, Yi Lu, Jiaxing Li, Yunhui Dong, Xiangke Wang, Adsorption of Pb(II) on diatomite as affected via aqueous solution chemistry and temperature Colloids and Surfaces A: Physicochemical and Engineering Aspects. ,vol. 339, pp. 159- 166 ,(2009) , 10.1016/J.COLSURFA.2009.02.016
Dehong Chen, Lu Cao, Tracey L. Hanley, Rachel A. Caruso, Facile Synthesis of Monodisperse Mesoporous Zirconium Titanium Oxide Microspheres with Varying Compositions and High Surface Areas for Heavy Metal Ion Sequestration Advanced Functional Materials. ,vol. 22, pp. 1966- 1971 ,(2012) , 10.1002/ADFM.201102878
Wojciech Konicki, Daniel Sibera, Ewa Mijowska, Zofia Lendzion-Bieluń, Urszula Narkiewicz, Equilibrium and kinetic studies on acid dye Acid Red 88 adsorption by magnetic ZnFe2O4 spinel ferrite nanoparticles joint international conference on information sciences. ,vol. 398, pp. 152- 160 ,(2013) , 10.1016/J.JCIS.2013.02.021
M. Barathi, A. Santhana Krishna Kumar, Chinta Uday Kumar, N. Rajesh, Graphene oxide–aluminium oxyhydroxide interaction and its application for the effective adsorption of fluoride RSC Adv.. ,vol. 4, pp. 53711- 53721 ,(2014) , 10.1039/C4RA10006A
Syed Hadi Hasan, KK Singh, O Prakash, M Talat, YS Ho, None, Removal of Cr(VI) from aqueous solutions using agricultural waste 'maize bran'. Journal of Hazardous Materials. ,vol. 152, pp. 356- 365 ,(2008) , 10.1016/J.JHAZMAT.2007.07.006